repobrien.com propagation of light through multi - mode fiber and single - mode fiber is different. In digital . ABCDEFGHIJKLMNOPQRSTU V WXYZ · About - Careers. Single - mode fiber has a much smaller core than multimode. 9 microns in diameter compared to microns in diameter for multimode fiber. Which is right for your network? Single - Mode or Multi - Mode fiber cables? Check out the differences and find out which fits your need!. The main difference between multi - mode and However, compared to single - mode fibers, the. Fiber Optics is sending signals down hair-thin strands of glass or plastic fiber. The light is “guided” down the center of the fiber called the “core”. The core is. Single Mode vs Multi Mode Fiber Transceivers. Do you need to choose between Single Mode Fiber (SMF) and Multi Mode Fiber (SMF) for you.